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Looks basic but useable. There are many other ways to implement, you also will want to check to make sure there is internet connection first, if the device is disabled; don't even bother with attempting to check. Checking the connection is simple, just do a quick google search on that part.

Also, for the dialog, make use of String.Format() helps keep the error look clean.

Might want to also ping the server before trying to run the code, if the ping fails, you can create an alert message to let the user or you know that there was an error connecting to the server.

If you just use a try/catch, multiple issues could go on.

So, recap:

Check Internet Connection - If Not Connected, Alert User "Not Connected to the Internet"
Check Server (Ping) - If no response, Alert User "Server May Be Offline, Please Check Again"
Check Version (If same or higher) - Your program is up to date
Check Version (If Version is lower) - There is an update available, would you like to download?

The download location can be held on the server as dlLink.txt

Just use WebRequest to read the info and handle the link you update then have the program download.

There are a lot of ways to update programs, my favorite is using Installshield. Have your application check for updates, if true download the new file in Installshield build into the temp location. Then initiate the install (Run the application). Simple as that.

Nice job but I have a noob question. Isn't it better to use: using(reader.read())?

i dont know i use this what you see and it works fine but you can test it

anything that uses IDisposable/Resource, you should use using from what I read.

using(reader.read())
{
//code here
}

If you use that then you don't need to worry about disposing it with reader.dipose();

Thanks Clay p, I'll give credit

i have a red line under Console.WriteLine(ex.Message); and its just under "WriteLine" does anyone know what its for?

looks nice I try it